.top {
    color: #fff;
    height: 40px;
    line-height: 40px;
    display: flex;
    justify-content: space-between;
    padding: 0;
}
.top>.icon {
    width: 40px;
    height: 40px;
    line-height: 44px;
    text-align: center;
    font-size: 20px;
}
.top>.icon:hover {
    background-color: #3f8ee3;
}
.body {
    padding: 0 80px;
}
.body .input{
    width: 100%;
    height: 50px;
    margin: 80px 0;
    border: 1px solid #ddd;
}
.body .button {
    color: #fff;
    width: 100%;
    height: 50px;
    text-align: center;
}
.body .button .b_color:hover {
    background-color:#3f8ee3;
}